• Journal of the Korean Institute of Navigation
• /
• v.25 no.2
• /
• pp.149-158
• /
• 2001

This paper presents the educational methodology shipboard training methods of Maritime Colleges in U.S.A. and the fields of engagement in business of the graduates from them. There are two Maritime Academies, i.e. U.S. Merchant Marine Academy (USMMA) and U.S. Coast Guard Academy, which are supported by federal government and six Maritime Colleges operated by each State. Maritime Administration (MARAD) in the Department of Transportation (DOT) supports the training of merchant marine officers and crew members with a focus on safety in U.S. waterborne commerce. The shipboard training methods are not unique, but have various process. One is continuous sea term training onboard during sophomore (100 days) and junior year (200 days) in case of USMMA, the other is summer sea term training onboard every three months during freshman, sophomore and junior years in case of SUNY Maritime College. They offer also one month ship simulator training ashore. The employment status for the 1999 year graduates from USMMA shows 43 percent in the field of maritime afloat, 34 percent of maritime ashore, 22 percent of active duty military and 1 percent of others.

• Journal of Environmental Science International
• /
• v.16 no.12
• /
• pp.1439-1449
• /
• 2007

Heavy snowfall was occurred over the south-western part of the Korean Peninsula called as Honam Districts, on two days from 21 December 2005. The development mechanism of snowfall and its characteristics were analysed using observation and numerical data provided by Korea Meteorological Administration. In comparison with other years Arctic air mass developed and maintained during all December 2005 due to active planetary waves with three branches. And jet streams at lower and higher levels make easy development of snow convection cells. Especially thermal low induced by mesoscale heat and dynamic sources, also help the developments of convection cells in strong ascension. The understanding the relation between synoptic and mesoscale circumstance, therefore, is also important to predict the heavy snowfall and to prevent the disaster.

• Proceedings of the Ginseng society Conference
• /
• 1993.09a
• /
• pp.110-112
• /
• 1993

Acidic polysaccharide from Korean red ginseng was found to inhibit pancreatic lipase activity and cause reduction of plasma triglyceride level after oral administration of corn oil emulsion to rats. Thus acidic polysaccharide may reduce plasma triglyceride through its inhibitory action on pancreatic lipase and successive inhibition of intestinal absorption of fat due to reduction of lipolysis. In the course of this experiment, we found an unknown ninhydrin positive substance in Korean red ginseng. The unknown substance was identified to be arginyl-fructosyl glucose(Arg - Fru - Glc). Coment of this new compound was $5.37\%$ in Korean red ginseng powder. Sucrase and maltase activities in mucous layer of rat jejunum were found to be inhibited by Arg-Fru-Glc. Physiological significance of the new compound was discussed based on these experimental results.

• The Korean Journal of Health Service Management
• /
• v.11 no.4
• /
• pp.17-28
• /
• 2017

Objectives : This study analyzed job performance in local area general hospitals to look for measurable effects from educational training and/or organizational communication. Methods : For the purposes of this study, a survey was conducted of general hospital employees from 29 hospitals in Gwangju and Jeonnam. The survey period was August 22 - September 30, 2016, and 1,004 responses were used in the final analysis. Results : This study revealed that certain aspects of communication (upward,downward,vertical,orinformal) had significant effects on job satisfaction, learning transfer, and general performance. Conclusions : To improve job performance in general hospitals, employers must improve overall satisfaction by improving upon job training and internal communication. Specifically, training should be better connected to learning transfer and organizational design must encourage active communication between employees.

• Korean Journal of Pharmacognosy
• /
• v.25 no.2
• /
• pp.160-166
• /
• 1994

The possible mechanisms of ginseng saponins on the inhibition of the development of morphine tolerance and physical dependence were investigated in the aspects of morphine metabolism by morphine 6-dehydrogenase. The administration of morphine causes a reduction of non-protein sulfhydryl contents in the liver, because morphinone metabolized from morphine by morphine 6-dehydrogenase conjugates with sulfhydryl compounds. However, ginseng saponins inhibited the activity of morphine 6-dehydrogenase which catalyzed the production of morphinone from morphine. In addition, ginseng saponins inhibited the reduction of non-protein sulfhydryl levels by increasing the level of hepatic glutathione. These results suggest that the dual action of the above plays an important role in the inhibition of the development of morphine tolerance and physical dependence. On the other hand, it was observed that less polar components of ginseng saponins with parent structures were more active components in vitro.

• Korean Security Journal
• /
• no.1
• /
• pp.175-208
• /
• 1997

I study the actual condition and the problem of the crime prevention system of two seoul police station. that is operated on the unit of police box, and present the new improvement. Stragic and active is the new crime prevention system that introduces a concept of community oriented policing, the tendency of a developed country police. I present a medium - sized police station where 250${\sim}$300 policemen work. It consist of a patrol division, a community division and a administration support division. The chief of police bears the responsibility only for crime prevention service by concentrating on pure Patrol - centered crime prevention activity and community relation activity. Next I present a police inspector system. The most important on this paper is the community policing officer system that a policeman bears responsibility on district apart from a patrol division and support a police service related community. To be operated these systems effectively, these need to be regulated according to a police distinct, a police purpose and it's demand. Also a scale, function, authority of a existing. Police station must be regulated and the police training must be carried out.

• Korean Journal of Biological Psychiatry
• /
• v.7 no.1
• /
• pp.21-33
• /
• 2000

As the clinical practice of using more than one drug at a time increase, the clinician is faced with ever-increasing number of potential drug interactions. Although many interactions have little clinical significances, some may interfere with treatment or even be life-threatening. This review provides a better understanding of drug-drug interactions often encountered in pharmacotherapy of depression. Drug interactions can be grouped into two principal subdivisions : pharmacokinetic and pharmacodynamic. These subgroups serve to focus attention on possible sites of interaction as a drug moves from the site of administration and absorption to its site of action. Pharmacokinetic processes are those that include transport to and from the receptor site and consist of absorption, distribution on body tissue, plasma protein binding, metabolism, and excretion. Pharmacodynamic interactions occur at biologically active sites. In this review, emphasis is placed on antidepressant medications, how they are metabolized by the P450 system, and how they alter the metabolism of other drugs. When prescribing antidepressant medications, the clinician must consider the drug-drug interactions that are potentially problematic.

• Journal of Applied Biological Chemistry
• /
• v.49 no.3
• /
• pp.90-94
• /
• 2006

Bactericidal activity of grapefruit seed extract (GSE)-based disinfectant, as a safe disinfectant, was measured against five bacteria by Korean Food & Drug Administration (KFDA) dilution-neutralization method. GSE-based disinfectant showed a 99.9999% bactericidal activity against Escherichia coli ATCC 10536, Salmonella typhi ATCC 29629, Staphylococcus aureus ATCC 6538, Bacillus cereus ATCC 11778, and Listeria monocytogenes ATCC 1911 at the concentration of 2.15% GSE. It showed better bactericidal activity against Gram-negative bacteria of E. coli ATCC 10536 and S. typhi ATCC 29629 at lower concentration of GSE (0.43%). Based on the results, it was suggested that a possible bactericidal mechanism of GSE active ingredients was due to the abrupt osmotic shift during the bactericidal activity test by KFDA method.

• Journal of the Korea Safety Management & Science
• /
• v.8 no.1
• /
• pp.181-194
• /
• 2006

Economic and political barriers in Northeast Asia including Korea have been eliminated gradually. As results of economic relations are more active in this region. The administration of physical distribution tightened circulation- cost down. This is one of the most important facts to develop world economy. Distribution in China is expected to grow quantitatively and continuously. China is just out of planned economic system. Therefore, it is expected that foreign affiliated firms will take a fierce competition for the next $1\sim2$ years. This study investigates Korea-China trade and distribution index with analysis and expectation of China market. The study analyzes the business conditions, faced problems and differentiated strategies of foreign affiliated firms. Be based on those, it is researched how domestic companies will make strategies to start China successfully.

• Korean Journal of Agricultural Science
• /
• v.17 no.1
• /
• pp.18-25
• /
• 1990

The above results indicate that vegetable crop production using vinyl houses continously increases. However, technical support and facility improvement are still insufficent to establish a full production system. In order to improve the cultural environment in facilities for better vegetable culture, several facters should be considered. 1. Facility design and arrangement should be made to improve micro-environments for crop growth and development because direction of facility and covering materials can affect the amount of light trasmitted into vinyl houses. 2. Cultivation of several leading varieties in each crop may not provide stable production and profit especially under undesirable environmental conditions. Thus, it is required to grow not only leading varieties but also other cultivars to decrease the economic losses. 3. Crops should be carefully managed when planted in early season not to experience low temperatures which induce growth retards. Early season cultivation requires proper selection of cultivars which are resistant to low temperture. 4. Active control of micro-environment in facilities should be made via improving the ventilation and irrigation systems.